package top.appx.zutil;

import java.beans.BeanInfo;
import java.beans.Introspector;
import java.beans.PropertyDescriptor;
import java.lang.reflect.Method;

/**
 * Created by john on 2016/7/18.
 */
public class BeanUtil {
    public static void copyProperties(Object source, Object dest)throws Exception {
        //获取属性
        BeanInfo sourceBean = Introspector.getBeanInfo(source.getClass(), Object.class);
        PropertyDescriptor[] sourceProperty = sourceBean.getPropertyDescriptors();

        BeanInfo destBean = Introspector.getBeanInfo(dest.getClass(), Object.class);
        PropertyDescriptor[] destProperty = destBean.getPropertyDescriptors();

        try{
            for(int i=0;i<sourceProperty.length;i++){

                for(int j=0;j<destProperty.length;j++){

                    if(sourceProperty[i].getName().equals(destProperty[j].getName())){
                        //调用source的getter方法和dest的setter方法
                        destProperty[j].getWriteMethod().invoke(dest, sourceProperty[i].getReadMethod().invoke(source));
                        break;
                    }
                }
            }
        }catch(Exception e){
            throw new Exception("属性复制失败:"+e.getMessage());
        }
    }
}
